add support of `command://` prefix

data/resources/ui/window-gnome.ui

@@ -18,6 +18,8 @@
             <property name="resource-uri">/ru/ximperlinux/Welcome/gnome/overview.svg</property>
             <property name="head" translatable="yes">Get an Overview</property>
             <property name="body" translatable="yes" comments="Translators: 'Windows' is referring to the operating system and should not be translated">The overview shows all your apps and windows. Press the Super (Windows) key to open it.</property>
+            <property name="button-label" translatable="yes">Test command button</property>
+            <property name="button-url">command://xdg-open https://wiki.ximperlinux.ru</property>
           </object>
         </child>
         <child>

src/widgets/image_page.rs

 use gtk::{gio, glib, prelude::*, subclass::prelude::*};
+use std::process::Command as Cmd;
 
 mod imp {
     use std::cell::{OnceCell, RefCell};
@@ -65,8 +66,33 @@ mod imp {
 
             if let Some(url) = self.button_url.borrow().clone() {
                 let button = self.action_button.get();
+                
                 button.connect_clicked(move |_| {
-                    let _ = gio::AppInfo::launch_default_for_uri(&url, None::<&gio::AppLaunchContext>);
+                    if url.starts_with("command://") {
+                        let command = url.trim_start_matches("command://");
+                        
+                        let output = Cmd::new("sh")
+                            .arg("-c")
+                            .arg(command)
+                            .output();
+                        
+                        match output {
+                            Ok(output) => {
+                                if output.status.success() {
+                                    log::info!("Command executed successfully");
+                                } else {
+                                    log::error!("Command failed: {:?}", output.status);
+                                }
+                            }
+                            
+                            Err(e) => {
+                                log::error!("Failed to execute command: {}", e);
+                            }
+                        }
+                    } 
+                    else {
+                        let _ = gio::AppInfo::launch_default_for_uri(&url, None::<&gio::AppLaunchContext>);
+                    }
                 });
             }
         }